Originally Posted by knc1
There are two DX(G) machines involved - one with a working serial port, reported as booting to u-boot (although I suspect it is actually booting the kernel and the kernel is doing a panic halt) ;
With that, I can perhaps achieve a better description. I believe it does boot the kernel, and without intervention enters a loop as documented in the file I attached above. I can (or COULD) break in at the point where it is possible to enter u-boot. As of now, my serial port appears to have gone silent.